How Much Radiation is Emitted by Popular Smartphones?
Connect with us

Technology

How Much Radiation is Emitted by Popular Smartphones?

Published

on

Infographic showing the Radiation emissions of popular smartphones

Can I share this graphic?
Yes. Visualizations are free to share and post in their original form across the web—even for publishers. Please link back to this page and attribute Visual Capitalist.
When do I need a license?
Licenses are required for some commercial uses, translations, or layout modifications. You can even whitelabel our visualizations. Explore your options.
Interested in this piece?
Click here to license this visualization.

Radiation Emissions of Popular Smartphones

Smartphones have become an integral part of our everyday lives. From work and school to daily tasks, these handheld devices have brought everything into the palm of our hands.

Most people spend 5-6 hours on their phones each day. And, given that our phones emit a tiny amount of radiation, we’re exposing ourselves to radiation for hours each day.

But different phones emit different amounts of radiation.

With the help of data collected by the German Federal Office of Radiation Protection, we visualize the radiation emissions of some popular smartphones in the market today.

Radiation and SAR Values of Smartphones

Smartphones and other mobile devices emit tiny amounts of radiofrequency (RF) radiation. Humans can absorb this radiation when the smartphone is being used or is lying dormant anywhere near their bodies.

The parameter used to measure phone radiation emissions is the Specific Absorption Rate (SAR). It is the unit of measurement that represents the quantity of electromagnetic energy absorbed by the body when using a mobile device.

The Council of the European Union has set radiation standards for cell phones at 2 watts per kilogram, measured over the 10 grams of tissue that is absorbing the most signal.

SAR values are calculated at the ear (speaking on the phone) and at the body (kept in your pocket). For the purposes of this article, we’ve used the former calculations.

Smartphones With the Highest Levels of Radiation Emissions

The Motorola Edge has the highest radiation emission with a SAR value of 1.79 watts of radiation per kilogram. That’s significantly higher than most other smartphone models in the market today and close to the limits set by the EU for cellphones.

Coming in second is the Axon 11 5G by ZTE with 1.59, followed by the OnePlus 6T at a close third with 1.55 W/kg. The Sony Experia AX2 Plus with 1.41 and the Google Pixel 3 XL and 3A XL at 1.39 round out the top five.

Here is a look at the 10 smartphones that emit the highest level of radiation:

Smartphones with the lowest level of radiation

Now that we have detailed the worst offenders let’s look at the smartphones with the lowest levels of radiation emissions.

Smartphones With the Lowest Levels of Radiation Emissions

The smartphone with the lowest SAR value is the ZTE Blade V10, with 0.13 watts of radiation per kilogram.

Mobile devices by Samsung carry some of the least radiation risks. The company has four phones considered to be the best in the category. The Galaxy Note 10+ is the best model in their line-up, emitting a meager 0.19 watts per kilogram.

Here is a look at the 10 smartphones that emit the lowest levels of radiation:

Smartphones with the highest level of radiation

There is currently no significant research proving the harmful effects of phone radiation.

Despite this, people who are in contact with their devices for extended periods can at least quantify their radiation exposure and make choices about which brands serve their needs.

Click for Comments

Technology

How Big Tech Revenue and Profit Breaks Down, by Company

How do the big tech giants make their money? This series of graphics shows a breakdown of big tech revenue, using Q2 2022 income statements.

Published

on

In the media and public discourse, companies like Alphabet, Apple, and Microsoft are often lumped together into the same “Big Tech” category. After all, they constitute the world’s largest companies by market capitalization.

And because of this, it’s easy to assume they’re in direct competition with each other, fiercely battling for a bigger piece of the “Big Tech” pie. But while there is certainly competition between the world’s tech giants, it’s a lot less drastic than you might imagine.

This is apparent when you look into their various revenue streams, and this series of graphics by Truman Du provides a revenue breakdown of Alphabet, Amazon, Apple, and Microsoft.

How Big Tech Companies Generate Revenue

So how does each big tech firm make money? Let’s explore using data from each company’s June 2022 quarterly income statements.

Alphabet

breakdown of Alphabet's revenue streams and profit

View the full-size infographic

In Q2 2022, about 72% of Alphabet’s revenue came from search advertising. This makes sense considering Google and YouTube get a lot of eyeballs. Google dominates the search market—about 90% of all internet searches are done on Google platforms.

Amazon

breakdown of amazon's revenue streams and profit

View the full-size infographic

Perhaps unsurprisingly, Amazon’s biggest revenue driver is e-commerce. However, as the graphic above shows, the costs of e-commerce are so steep, that it actually reported a net loss in Q2 2022.

As it often is, Amazon Web Services (AWS) was the company’s main profit-earner this quarter.

Apple

breakdown of Apple's revenue streams and profit

View the full-size infographic

Apple’s biggest revenue driver is consumer electronics sales, particularly from the iPhone which accounts for nearly half of overall revenue. iPhones are particularly popular in the U.S., where they make up around 50% of smartphone sales across the country.

Besides devices, services like Apple Music, Apple Pay, and Apple TV+ also generate revenue for the company. But in Q2 2022, Apple’s services branch accounted for only 24% of the company’s overall revenue.

Microsoft

breakdown of Microsoft's revenue streams and profit

View the full-size infographic

Microsoft has a fairly even split between its various revenue sources, but similarly to Amazon its biggest revenue driver is its cloud services platform, Azure.

After AWS, Azure is the second largest cloud server in the world, capturing 21% of the global cloud infrastructure market.

Continue Reading

Technology

Animation: The Most Popular Websites by Web Traffic (1993-2022)

This video shows the evolution of the internet, highlighting the most popular websites from 1993 until 2022.

Published

on

ranking websites by page views 1993-2022

The Most Popular Websites Since 1993

Over the last three decades, the internet has grown at a mind-bending pace.

In 1993, there were fewer than 200 websites available on the World Wide Web. Fast forward to 2022, and that figure has grown to 2 billion.

This animated graphic by James Eagle provides a historical look at the evolution of the internet, showing the most popular websites over the years from 1993 to 2022.

The 90s to Early 2000s: Dial-Up Internet

It was possible to go on the proto-internet as early as the 1970s, but the more user-centric and widely accessible version we think of today didn’t really materialize until the early 1990s using dial-up modems.

Dial-up gave users access to the web through a modem that was connected to an active telephone line. There were several different portals in the 1990s for internet use, such as Prodigy and CompuServe, but AOL quickly became the most popular.

AOL held its top spot as the most visited website for nearly a decade. By June 2000, the online portal was getting over 400 million monthly visits. For context, there were about 413 million internet users around the world at that time.

RankWebsiteMonthly Visits (May 2000)
1AOL400,891,812
2Yahoo387,573,587
3MSN354,239,803
4eBay116,101,785
5Lycos116,064,930

But when broadband internet hit the market and made dial-up obsolete, AOL lost its footing, and a new website took the top spot—Yahoo.

The Mid 2000s: Yahoo vs. Google

Founded in 1994, Yahoo started off as a web directory that was originally called “Jerry and David’s Guide to the World Wide Web.”

When the company started to pick up steam, its name changed to Yahoo, which became a backronym that stands for “Yet Another Hierarchical Officious Oracle.”

Yahoo grew fast and by the early 2000s, it became the most popular website on the internet. It held its top spot for several years—by April 2004, Yahoo was receiving 5.6 billion monthly visits.

RankWebsiteMonthly Visits (April 2004)
1Yahoo5,658,032,268
2MSN1,838,700,057
3Google1,318,276,780
4AOL905,009,947
5eBay805,474,705

But Google was close on its heels. Founded in 1998, Google started out as a simpler and more efficient search engine, and the website quickly gained traction.

Funny enough, Google was actually Yahoo’s default search engine in the early 2000s until Yahoo dropped Google so it could use its own search engine technology in 2004.

For the next few years, Google and Yahoo competed fiercely, and both names took turns at the top of the most popular websites list. Then, in the 2010s, Yahoo’s trajectory started to head south after a series of missed opportunities and unsuccessful moves.

This cemented Google’s place at the top, and the website is still the most popular website as of January 2022.

The Late 2000s, Early 2010s: Social Media Enters the Chat

While Google has held its spot at the top for nearly two decades, it’s worth highlighting the emergence of social media platforms like YouTube and Facebook.

YouTube and Facebook certainly weren’t the first social media platforms to gain traction. MySpace had a successful run back in 2007—at one point, it was the third most popular website on the World Wide Web.

RankWebsiteMonthly Visits (Jan 2007)
1Google7,349,521,929
2Yahoo5,169,762,311
3MySpace1,276,515,128
4MSN1,259,467,102
5eBay957,928,554

But YouTube and Facebook marked a new era for social media platforms, partly because of their ​​impeccable timing. Both platforms entered the scene around the same time that smartphone innovations were turning the mobile phone industry on its head. The iPhone’s design, and the introduction of the App store in 2008, made it easier than ever to access the internet via your mobile device.

As of January 2022, YouTube and Facebook are still the second and third most visited websites on the internet.

The 2020s: Google is Now Synonymous With the Internet

Google is the leading search engine by far, making up about 90% of all web, mobile, and in-app searches.

What will the most popular websites be in a few years? Will Google continue to hold the top spot? There are no signs of the internet giant slowing down anytime soon, but if history has taught us anything, it’s that things change. And no one should get too comfortable at the top.

Continue Reading

Subscribe

Popular